The combined effect of rain and wind on air–water gas exchange: A feasibility study |
| |
| Authors: | David T Ho Fabrice Veron Emily Harrison Larry F Bliven Nicholas Scott Wade R McGillis |
| |
| Institution: | aLamont-Doherty Earth Observatory of Columbia University, USA;bDepartment of Earth and Environmental Sciences, Columbia University, USA;cCollege of Marine and Earth Studies, University of Delaware, USA;dNASA/WFF, USA;eWoods Hole Oceanographic Institution, USA;fDepartment of Earth and Environmental Engineering, Columbia University, USA |
| |
| Abstract: | A series of experiments were conducted at University of Delaware's Air–Sea Interaction Laboratory to examine the combined effects of rain and wind on air–water gas exchange. During this study, ASIL WRX I, a combination of 3 rain rates and 4 wind speeds were used, for a total of 12 different environmental conditions. The SF6 evasion method was used to determine the bulk gas transfer velocities, and airside profiles of wind and CO2 were used to estimate flux–profiles of momentum and carbon dioxide. In addition to measurements of fluxes with and without rain in a wind–wave boundary layer, measurements of wave properties were also obtained. Rain is shown to alter the wind profile in the flume, and dampen surface waves. Also, SF6 evasion indicates that with the present experimental setup, for most of the experimental conditions, rain and wind combine linearly to influence air–water gas exchange. Flux–profile relationships for marine atmospheric boundary layers, which were performed to scale up to field measurements, were explored by a comparison between SF6-derived bulk fluxes and airside CO2 profile measurements. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
